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BCS

Notice of Proposed Sale · 144

Seacoast Banking Corporation of Florida

SBCFNASDAQEQUITYCurrent

Notice of Proposed Sale

Filed Aug 4, 2026Accepted Aug 4, 2026, 4:19 PM EDTFiling CIK 730708Accession 0001950047-26-007612
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Structured filing — 144

primary_doc.xml

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer
SEACOAST BANKING CORPORATION OF FLORIDA
Issuer CIK
0000730708
SEC file number
000-13660
Phone
(772) 287-4000
Person for whose account securities are to be sold
CHARLES M SHAFFER
Relationships to issuer
Officer · Director
Street
815 Colorado Avenue
City
Stuart
State / country code
FL
Postal code
34994

Securities proposed for sale

Securities proposed for sale · 1 reported row
SecurityProposed unitsAggregate market valueUnits outstandingApproximate sale dateExchangeBroker / market maker
Common25,851916,960.8297,246,77208/04/2026NASDAQMorgan Stanley Smith Barney LLC Executive Financial Services

Broker / market maker — proposed row 1, entry 1

Name
Morgan Stanley Smith Barney LLC Executive Financial Services
Street
1 New York Plaza
Street (continued)
8th Floor
City
New York
State / country code
NY
Postal code
10004

Acquisition of securities to be sold

Acquisition of securities to be sold · 1 reported row
SecurityAcquiredNature of acquisitionAcquired fromAmount acquiredGift transactionPayment dateNature of payment
Common08/04/2026Stock Option ExerciseIssuer25,851N08/04/2026Cash

Prior-sale reporting

Nothing to report for the preceding three months
Y

Notice signature

Notice date
08/04/2026
Signed
/s/ Charles Marshall Shaffer

Company context

Seacoast Banking Corporation of Florida (NASDAQ: SBCF) is one of the largest community banks headquartered in Florida with approximately $15.7 billion in assets and $12.6 billion in deposits as of March 31, 2025. Seacoast provides integrated financial services including commercial and consumer banking, wealth management, mortgage and insurance services to customers at 79 full-service branches across Florida, and through advanced mobile and online banking solutions. Seacoast National Bank is the wholly-owned subsidiary bank of Seacoast Banking Corporation of Florida. For more information about Seacoast, visit www. SeacoastBanking.com.

Current securities

Historical securities (1)

Recent company filings

  1. Regulation FD DisclosureNov 4, 2026
  2. 10-Q filingNov 4, 2026
  3. Results of Operations and Financial Condition · Regulation FD DisclosureOct 27, 2026
  4. 4 filingSep 17, 2026
  5. 144 filingSep 16, 2026

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